Adjustment Method Of Bauxite Rotary Kiln

If the major defects in the manufacture and installation of the supporting roller shaft and the shoe are excluded, the oil wedge of the shoe mouth is unreasonable, and the foreign matter in the shoe mouth causes serious damage to the oil mold and causes the temperature of the supporting roller shoe to rise, except for scraping and grinding, the general situation can be passed. The method of adjusting the displacement of the supporting roller seat can eliminate the heating problem of the supporting roller tile temperature. The heating of the supporting roller tile temperature can be divided into several situations, such as the heating of a certain supporting wheel tile thrust surface, the heating of a certain supporting wheel tile surface, or the simultaneous heating of a certain supporting wheel tile thrust surface and the supporting wheel tile surface. If the central control reports that the tile temperature or the oil pool temperature exceeds 45°C, the on-site personnel should be sent to determine the specific heating part, whether it is the end face heating or the tile surface heating. More likely. Direction control during adjustment: Use the two-handed spiral law to guide the adjustment of the supporting roller seat on site. The method is simple and practical, that is, facing the supporting roller, hold the left and right middle finger, ring finger and little finger tightly, and the direction is the same as the rotation direction of the supporting roller. The thumb is straight, the direction of the thumb is the moving direction of the supporting roller (the axial direction of the rotary kiln), and the direction of the index finger is the moving direction of the supporting roller (the radial direction of the rotary kiln). Adjustment method when the thrust surface is hot: when the thrust surface of a supporting roller seat tile is hot, the gap between the thrust plate and the tile can be changed by advancing (retracting) the supporting roller seat to move the supporting roller along the direction of the center line of the kiln to eliminate friction and heat generation. In order to keep the center line unchanged, after adjusting the supporting roller seat, adjust the supporting roller seat that is diagonally opposite to it in the supporting roller. Adjustment method when the tile surface is hot: When the tile surface of the supporting roller seat is hot, the supporting roller can be moved along the vertical direction of the center line of the kiln by withdrawing the supporting roller seat to relieve the force of the tile and eliminate the heat. Adjustment method when the thrust surface and the tile surface are heated at the same time: when the thrust surface of a supporting roller seat tile is heated, the gap between the thrust plate and the tile can be changed by advancing (retracting) the supporting roller seat to move the supporting roller along the direction of the center line of the kiln to eliminate friction Heat is generated, at this time, in order to ensure that the center line remains unchanged, after adjusting the supporting roller seat, adjust the supporting roller seat that is diagonally opposite to it in the retaining roller. How many roller seats to adjust at a time? Generally speaking, it is impossible for all the thrust surfaces of the 12 roller seats to be heated, and it is less likely that the thrust surfaces of the two roller seats inside a set of rollers are heated. Sometimes in order to adjust the effect quickly, one thrust tile in a set of roller seats is heated to advance (retract) the roller seat, and the other roller seat is retreated (advanced) a little, but both the roller seats are advanced or both are retreated. It is impossible to alleviate the heating problem of the thrust surface tile at this time. In order to ensure that the center line of the kiln does not change, theoretically, the two diagonal supporting roller seats in the supporting roller can be adjusted. Control of kiln speed during adjustment: During adjustment, the kiln can be stopped for a short time, but the kiln can also be adjusted during normal operation. At this time, the speed of the kiln should be appropriately reduced. When the jack lifts the kiln inward, it is even more necessary to turn the kiln slowly or control the kiln speed at 1rpm. Control of the displacement of the roller seat during adjustment: In order to ensure the accuracy during adjustment, sometimes the axial stop of the roller seat needs to be removed. During the adjustment process, each roller seat should use 2 dial indicators. The adjustment amount is between 0.2-0.35mm. Safe control during adjustment: The kiln may still be running because the anchor bolts need to be loosened during adjustment. Therefore, a jack should be used to hold the kiln to replace the load when the anchor bolts are loosened. Due to the large number of people during adjustment, continuous observation is required. The internal situation of the roller seat, do not drop foreign objects into the roller seat at this time, check before adjustment, and observe during adjustment and after adjustment. Influence. Observation and monitoring after adjustment: After adjustment, pay attention to whether the gap between the thrust plate and the tile has changed, whether there is any abnormal change in the temperature of other supporting rollers and the other two supporting rollers in the same gear of the same set of rollers, and whether the temperature of each gear has changed. Whether the tile temperature is adjusted properly.